A few questions about ketamine combined with other drugs

So I just got some ketamine and have done quite a bit of research on dosage, duration, effects and combinations. Ofc there’s warnings about the risks of combining things, but I love mixing drugs! Weed and shrooms, weed and MDMA, shrooms and acid, etc. I want to learn more about the subjective experience of mixing ket with acid, shrooms or MDMA. What are your experiences? How would dosage change when combining it? I read it synergizes with psychedelics so I’d assume you take a low dose.